Dufour rhymes with:
foor, fuhr, allure, amanpour, assure, badour, baldur, beladur, bijur, bloor, bonjour, boor, brochure, buhr, cour, couture, cure, damour, demure, detour, duerr, endure, ensure, foor, fuhr, gilmour, gloor, gochnour, immature, impure, insure, inure, jabbour, jure, lacour, lancour, latour, lesure, lumpur, lure, manure, mature, moor, moore, mosur, muhr, muir, nur, obscure, observateur, pimplapure, poor, poore, premature, procure, pure, reassure, rednour, reinsure, ruhr, schnoor, schuur, secure, segur, shure, spoor, stamour, suhr, suhre, suire, sure, tour, ture, uhr, unsure, you're
Dufour sounds like:
d'ivoire, d'oeuvre, dadfar, dapper, datapower, dauber, davir, deaver, debarr, debeer, deberry, deboer, debor, debora, deborah, debra, debuhr, deeper, defer, defiore, defoor, defore, defray, depree, deprey, deupree, dever, devera, devere, deveroy, devor, devore, devour, devry, dewberry, dewbre, diaper, dibari, differ, difiore, dipiero, dipierro, dipirro, dipper, diver, dober, dobry, dover, dubarry, dubray, dubree, dubrow, duffer, duffour, dufur, duper, dupre, dupree, duprey